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Unit 2 Lesson 12
Genetic Factors in Inheritance
| Term | Definition |
|---|---|
| allele | a version of a gene |
| codominance | a non-Mendelian inheritance pattern in which both alleles are expressed equally |
| complete dominance | a Mendelian inheritance pattern in which one allele is dominant over the other allele and completely masks the phenotype of the recessive allele when at least one dominant allele is present in the genotype |
| epistasis | the interaction between genes that influences a phenotype |
| heterozygous | an individual who has two different alleles for a particular trait |
| homozygous | and individual who has two identical alleles for a particular trait |
| incomplete dominance | a non-Mendelian inheritance pattern that occurs when an allel for a specific trait is not completely expressed over its recessive allel |
| multiple alleles | a type of non-Mendelian inheritance pattern in which there are more than two alleles possible for a gene |
| phenotype | a physical characteristic resulting from the interaction of alleles |
| pleiotropy | a type of non-Mendelian inheritance pattern in which one gene affects multiple phenotypes |
| polygenic trait | a trait that is affected by multiple genes |
Created by:
atrang
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